O18 WFST, Lenghu

Where is this observatory?

Graphs

Yearly Breakdown of MPEC Types

Term definition:
Editorial - Editorial MPECs associated with this station.
Discovery - MPECs associated with discovery made by this station.
OrbitUpdate - MPECs associated with orbit updates involving observations made by this station. Typically, these are recoveries of single-opposition objects.
DOU - Daily Orbit Update MPECs involving observations made by this station.
ListUpdate - MPECs associated with list updates involving observations made by this station. This category has largely been retired since 2012.
Retraction - Retracted MPECs involving observations made by this station.
Followup - MPECs associated with follow-up observations made by this station to an object discovered elsewhere.
FirstFollowup - MPECs associated with follow-up observations made by this station to an object discovered elsewhere, with this station being the first station to follow-up.
Other - MPECs that do not fit into categories listed above and involve observations made by this station.

Yearly Breakdown of Discovery Object Types

Yearly Breakdown of Orbit Update Object Types

Breakdown by Observers

Breakdown by Measurers

Breakdown by Facilities

Breakdown by Objects

Annual Breakdown

Weekly Breakdown

Hourly Breakdown

Tables

Yearly Breakdown of MPEC Types

Year	Total MPECs	Editorial	Discovery	P/R/FU	DOU	List Update	Retraction	Other	Follow-Up	First Follow-Up
2025	72	0	10	19	40	0	0	0	3	0
2024	71	0	12	11	44	0	0	0	4	0
2023	32	0	4	8	15	0	0	0	4	1
2022	0	0	0	0	0	0	0	0	0	0
2021	0	0	0	0	0	0	0	0	0	0
2020	0	0	0	0	0	0	0	0	0	0
2019	0	0	0	0	0	0	0	0	0	0
2018	0	0	0	0	0	0	0	0	0	0
2017	0	0	0	0	0	0	0	0	0	0
2016	0	0	0	0	0	0	0	0	0	0
2015	0	0	0	0	0	0	0	0	0	0
2014	0	0	0	0	0	0	0	0	0	0
2013	0	0	0	0	0	0	0	0	0	0
2012	0	0	0	0	0	0	0	0	0	0
2011	0	0	0	0	0	0	0	0	0	0
2010	0	0	0	0	0	0	0	0	0	0
2009	0	0	0	0	0	0	0	0	0	0
2008	0	0	0	0	0	0	0	0	0	0
2007	0	0	0	0	0	0	0	0	0	0
2006	0	0	0	0	0	0	0	0	0	0
2005	0	0	0	0	0	0	0	0	0	0
2004	0	0	0	0	0	0	0	0	0	0
2003	0	0	0	0	0	0	0	0	0	0
2002	0	0	0	0	0	0	0	0	0	0
2001	0	0	0	0	0	0	0	0	0	0
2000	0	0	0	0	0	0	0	0	0	0
1999	0	0	0	0	0	0	0	0	0	0
1998	0	0	0	0	0	0	0	0	0	0
1997	0	0	0	0	0	0	0	0	0	0
1996	0	0	0	0	0	0	0	0	0	0
1995	0	0	0	0	0	0	0	0	0	0
1994	0	0	0	0	0	0	0	0	0	0
1993	0	0	0	0	0	0	0	0	0	0

List of Individual MPECs

Index	Name	Date/Time	Discoverer	First-responding Confirmer	Object Type	Search Archival Image
1	MPEC 2023-R58 DAILY ORBIT UPDATE (2023 September 8)	2023-09-08 12:07:00
2	MPEC 2023-T241 DAILY ORBIT UPDATE (2023 October 14)	2023-10-14 12:16:00
3	MPEC 2023-U42 DAILY ORBIT UPDATE (2023 October 17)	2023-10-17 12:27:00
4	MPEC 2023-U159 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2023-10-21 05:24:00			Comet	CATCH
5	MPEC 2023-U164 DAILY ORBIT UPDATE (2023 October 21)	2023-10-21 12:05:00
6	MPEC 2023-U276 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2023-10-29 08:53:00			Comet	CATCH
7	MPEC 2023-V211 DAILY ORBIT UPDATE (2023 November 12)	2023-11-12 12:32:00
8	MPEC 2023-V215 2023 VM7	2023-11-12 15:06:00			NEA (H>22)	CATCH
9	MPEC 2023-V225 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2023-11-13 04:13:00			Comet	CATCH
10	MPEC 2023-V230 DAILY ORBIT UPDATE (2023 November 13)	2023-11-13 12:34:00
11	MPEC 2023-V242 DAILY ORBIT UPDATE (2023 November 14)	2023-11-14 12:38:00
12	MPEC 2023-W07 DAILY ORBIT UPDATE (2023 November 16)	2023-11-16 12:01:00
13	MPEC 2023-W08 2004 XO	2023-11-16 12:44:00			PHAg18	CATCH
14	MPEC 2023-W14 DAILY ORBIT UPDATE (2023 November 17)	2023-11-17 12:03:00
15	MPEC 2023-W21 DAILY ORBIT UPDATE (2023 November 18)	2023-11-18 15:14:00
16	MPEC 2023-W26 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2023-11-19 01:05:00			Comet	CATCH
17	MPEC 2023-W29 DAILY ORBIT UPDATE (2023 November 19)	2023-11-19 12:02:00
18	MPEC 2023-W47 DAILY ORBIT UPDATE (2023 November 20)	2023-11-20 12:03:00
19	MPEC 2023-W48 2008 WY13	2023-11-20 13:13:00			NEA (18>H>22)	CATCH
20	MPEC 2023-W65 2023 WT1	2023-11-21 07:26:00			NEA (H>22)	CATCH
21	MPEC 2023-W66 DAILY ORBIT UPDATE (2023 November 21)	2023-11-21 12:05:00
22	MPEC 2023-W79 2023 WX1	2023-11-22 11:48:00	✓		PHAg18	CATCH
23	MPEC 2023-W83 2023 WB2	2023-11-22 11:55:00	✓		NEA (H>22)	CATCH
24	MPEC 2023-W102 2023 WK2	2023-11-23 13:57:00	✓		NEA (18>H>22)	CATCH
25	MPEC 2023-W121 2023 TH139	2023-11-25 17:53:00			NEA (H>22)	CATCH
26	MPEC 2023-X40 2023 WZ3	2023-12-04 21:54:00	✓		NEA (H>22)	CATCH
27	MPEC 2023-X77 2023 WF4	2023-12-05 16:36:00		✓	NEA (H>22)	CATCH
28	MPEC 2023-X98 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2023-12-06 08:53:00			Comet	CATCH
29	MPEC 2023-Y78 DAILY ORBIT UPDATE (2023 December 23)	2023-12-23 12:05:00
30	MPEC 2023-Y82 DAILY ORBIT UPDATE (2023 December 25)	2023-12-25 12:06:00
31	MPEC 2023-Y97 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2023-12-29 03:14:00			Comet	CATCH
32	MPEC 2024-A88 DAILY ORBIT UPDATE (2024 January 9)	2024-01-09 12:09:00
33	MPEC 2024-A108 DAILY ORBIT UPDATE (2024 January 10)	2024-01-10 12:09:00
34	MPEC 2024-A110 2016 FM151	2024-01-10 16:29:00			NEA (H>22)	CATCH
35	MPEC 2024-A124 DAILY ORBIT UPDATE (2024 January 11)	2024-01-11 12:12:00
36	MPEC 2024-A136 2023 WF37	2024-01-12 01:13:00	✓		NEA (H>22)	CATCH
37	MPEC 2024-A150 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2024-01-13 04:14:00			Comet	CATCH
38	MPEC 2024-A151 DAILY ORBIT UPDATE (2024 January 13)	2024-01-13 12:19:00
39	MPEC 2024-A158 DAILY ORBIT UPDATE (2024 January 14)	2024-01-14 12:21:00
40	MPEC 2024-A165 DAILY ORBIT UPDATE (2024 January 15)	2024-01-15 12:24:00
41	MPEC 2024-A166 2013 AK20	2024-01-15 14:11:00			NEA (H>22)	CATCH
42	MPEC 2024-B03 DAILY ORBIT UPDATE (2024 January 16)	2024-01-16 12:25:00
43	MPEC 2024-B05 2024 AR4	2024-01-16 13:35:00	✓		NEA (18>H>22)	CATCH
44	MPEC 2024-B13 2023 XH27	2024-01-16 20:04:00			NEA (H>22)	CATCH
45	MPEC 2024-B17 2024 AW4	2024-01-17 07:46:00	✓		NEA (18>H>22)	CATCH
46	MPEC 2024-B20 DAILY ORBIT UPDATE (2024 January 17)	2024-01-17 12:27:00
47	MPEC 2024-B26 2024 AY4	2024-01-18 03:06:00	✓		NEA (18>H>22)	CATCH
48	MPEC 2024-B28 DAILY ORBIT UPDATE (2024 January 18)	2024-01-18 12:25:00
49	MPEC 2024-B43 DAILY ORBIT UPDATE (2024 January 19)	2024-01-19 12:26:00
50	MPEC 2024-B77 2024 AL6	2024-01-21 02:26:00	✓		NEA (H>22)	CATCH
51	MPEC 2024-B91 DAILY ORBIT UPDATE (2024 January 22)	2024-01-22 12:38:00
52	MPEC 2024-C49 2024 AA11	2024-02-05 14:10:00	✓		NEA (18>H>22)	CATCH
53	MPEC 2024-D56 2024 AW15	2024-02-18 23:14:00	✓		Unusual	CATCH
54	MPEC 2024-E139 2024 EY2	2024-03-10 01:20:00	✓		NEA (18>H>22)	CATCH
55	MPEC 2024-E140 DAILY ORBIT UPDATE (2024 March 10)	2024-03-10 12:09:00
56	MPEC 2024-E144 DAILY ORBIT UPDATE (2024 March 11)	2024-03-11 12:10:00
57	MPEC 2024-E145 2022 EY2	2024-03-11 13:25:00			NEA (18>H>22)	CATCH
58	MPEC 2024-F74 DAILY ORBIT UPDATE (2024 March 22)	2024-03-22 12:09:00
59	MPEC 2024-G88 DAILY ORBIT UPDATE (2024 April 7)	2024-04-07 12:13:00
60	MPEC 2024-G111 2024 FG6	2024-04-09 11:49:00			NEA (H>22)	CATCH
61	MPEC 2024-G134 DAILY ORBIT UPDATE (2024 April 10)	2024-04-10 12:17:00
62	MPEC 2024-G147 2024 GA3	2024-04-11 10:56:00	✓		NEA (H>22)	CATCH
63	MPEC 2024-G193 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2024-04-13 23:03:00			Comet	CATCH
64	MPEC 2024-H49 2024 GQ7	2024-04-20 18:34:00	✓		NEA (H>22)	CATCH
65	MPEC 2024-H65 COMET P/2022 U6 = P/2006 AH2 (Sheppard-Tholen)	2024-04-23 05:10:00			Comet	CATCH
66	MPEC 2024-H76 DAILY ORBIT UPDATE (2024 April 26)	2024-04-26 12:06:00
67	MPEC 2024-J52 2024 HE3	2024-05-03 18:25:00	✓		NEA (H>22)	CATCH
68	MPEC 2024-J99 DAILY ORBIT UPDATE (2024 May 6)	2024-05-06 12:07:00
69	MPEC 2024-J296 DAILY ORBIT UPDATE (2024 May 13)	2024-05-13 12:03:00
70	MPEC 2024-J302 DAILY ORBIT UPDATE (2024 May 14)	2024-05-14 12:04:00
71	MPEC 2024-L10 DAILY ORBIT UPDATE (2024 June 1)	2024-06-01 12:14:00
72	MPEC 2024-L29 DAILY ORBIT UPDATE (2024 June 3)	2024-06-03 12:15:00
73	MPEC 2024-L56 DAILY ORBIT UPDATE (2024 June 5)	2024-06-05 12:01:00
74	MPEC 2024-L65 DAILY ORBIT UPDATE (2024 June 6)	2024-06-06 12:03:00
75	MPEC 2024-L77 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2024-06-07 05:57:00			Comet	CATCH
76	MPEC 2024-L88 DAILY ORBIT UPDATE (2024 June 8)	2024-06-08 12:05:00
77	MPEC 2024-L125 DAILY ORBIT UPDATE (2024 June 12)	2024-06-12 12:08:00
78	MPEC 2024-L135 DAILY ORBIT UPDATE (2024 June 14)	2024-06-14 12:09:00
79	MPEC 2024-L146 DAILY ORBIT UPDATE (2024 June 15)	2024-06-15 12:10:00
80	MPEC 2024-M08 DAILY ORBIT UPDATE (2024 June 16)	2024-06-16 12:11:00
81	MPEC 2024-M11 DAILY ORBIT UPDATE (2024 June 17)	2024-06-17 12:11:00
82	MPEC 2024-M35 DAILY ORBIT UPDATE (2024 June 20)	2024-06-20 12:13:00
83	MPEC 2024-M38 DAILY ORBIT UPDATE (2024 June 21)	2024-06-21 12:02:00
84	MPEC 2024-M41 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2024-06-21 20:09:00			Comet	CATCH
85	MPEC 2024-M42 DAILY ORBIT UPDATE (2024 June 22)	2024-06-22 12:03:00
86	MPEC 2024-M43 DAILY ORBIT UPDATE (2024 June 23)	2024-06-23 12:03:00
87	MPEC 2024-M45 DAILY ORBIT UPDATE (2024 June 24)	2024-06-24 12:04:00
88	MPEC 2024-M79 2024 MR	2024-06-27 05:26:00	✓		NEA (18>H>22)	CATCH
89	MPEC 2024-M105 DAILY ORBIT UPDATE (2024 June 28)	2024-06-28 12:08:00
90	MPEC 2024-M118 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2024-06-30 07:07:00			Comet	CATCH
91	MPEC 2024-M121 DAILY ORBIT UPDATE (2024 June 30)	2024-06-30 12:13:00
92	MPEC 2024-N16 DAILY ORBIT UPDATE (2024 July 2)	2024-07-02 12:11:00
93	MPEC 2024-N27 DAILY ORBIT UPDATE (2024 July 3)	2024-07-03 12:12:00
94	MPEC 2024-N28 DAILY ORBIT UPDATE (2024 July 4)	2024-07-04 12:14:00
95	MPEC 2024-N80 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2024-07-07 07:01:00			Comet	CATCH
96	MPEC 2024-N97 DAILY ORBIT UPDATE (2024 July 8)	2024-07-08 12:19:00
97	MPEC 2024-N124 DAILY ORBIT UPDATE (2024 July 10)	2024-07-10 12:02:00
98	MPEC 2024-N144 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2024-07-14 01:54:00			Comet	CATCH
99	MPEC 2024-O58 DAILY ORBIT UPDATE (2024 July 26)	2024-07-26 12:06:00
100	MPEC 2024-P23 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2024-08-02 08:12:00			Comet	CATCH
101	MPEC 2024-S24 DAILY ORBIT UPDATE (2024 September 20)	2024-09-20 12:06:00
102	MPEC 2024-X68 2024 XA1	2024-12-03 18:15:00			NEA (H>22)	CATCH
103	MPEC 2025-A04 DAILY ORBIT UPDATE (2025 January 1)	2025-01-01 12:22:00
104	MPEC 2025-A40 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-01-03 03:22:00			Comet	CATCH
105	MPEC 2025-A46 DAILY ORBIT UPDATE (2025 January 3)	2025-01-03 12:21:00
106	MPEC 2025-A159 DAILY ORBIT UPDATE (2025 January 10)	2025-01-10 13:42:00
107	MPEC 2025-A163 DAILY ORBIT UPDATE (2025 January 11)	2025-01-11 13:18:00
108	MPEC 2025-A169 DAILY ORBIT UPDATE (2025 January 13)	2025-01-13 12:18:00
109	MPEC 2025-A171 DAILY ORBIT UPDATE (2025 January 14)	2025-01-14 12:19:00
110	MPEC 2025-A177 DAILY ORBIT UPDATE (2025 January 15)	2025-01-15 12:19:00
111	MPEC 2025-B40 DAILY ORBIT UPDATE (2025 January 21)	2025-01-21 12:06:00
112	MPEC 2025-B54 DAILY ORBIT UPDATE (2025 January 22)	2025-01-22 12:09:00
113	MPEC 2025-B109 DAILY ORBIT UPDATE (2025 January 25)	2025-01-25 12:16:00
114	MPEC 2025-B129 DAILY ORBIT UPDATE (2025 January 26)	2025-01-26 12:20:00
115	MPEC 2025-B144 DAILY ORBIT UPDATE (2025 January 27)	2025-01-27 12:19:00
116	MPEC 2025-B154 DAILY ORBIT UPDATE (2025 January 28)	2025-01-28 12:20:00
117	MPEC 2025-B181 DAILY ORBIT UPDATE (2025 January 30)	2025-01-30 12:23:00
118	MPEC 2025-B186 DAILY ORBIT UPDATE (2025 January 31)	2025-01-31 12:25:00
119	MPEC 2025-C64 DAILY ORBIT UPDATE (2025 February 6)	2025-02-06 12:39:00
120	MPEC 2025-C113 DAILY ORBIT UPDATE (2025 February 7)	2025-02-07 12:40:00
121	MPEC 2025-C143 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-02-08 19:17:00			Comet	CATCH
122	MPEC 2025-C156 DAILY ORBIT UPDATE (2025 February 10)	2025-02-10 12:39:00
123	MPEC 2025-C160 DAILY ORBIT UPDATE (2025 February 11)	2025-02-11 12:48:00
124	MPEC 2025-D137 2025 DW4	2025-02-24 07:09:00	✓		NEA (H>22)	CATCH
125	MPEC 2025-D163 DAILY ORBIT UPDATE (2025 February 25)	2025-02-25 12:22:00
126	MPEC 2025-D201 DAILY ORBIT UPDATE (2025 February 26)	2025-02-26 12:22:00
127	MPEC 2025-D211 COMET P/2025 D3 (PANSTARRS)	2025-02-26 21:56:00			Comet	CATCH
128	MPEC 2025-D243 DAILY ORBIT UPDATE (2025 February 28)	2025-02-28 12:23:00
129	MPEC 2025-D254 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-02-28 19:33:00			Comet	CATCH
130	MPEC 2025-E53 DAILY ORBIT UPDATE (2025 March 3)	2025-03-03 12:24:00
131	MPEC 2025-E66 DAILY ORBIT UPDATE (2025 March 4)	2025-03-04 12:27:00
132	MPEC 2025-E98 DAILY ORBIT UPDATE (2025 March 5)	2025-03-05 12:28:00
133	MPEC 2025-E119 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-03-06 19:54:00			Comet	CATCH
134	MPEC 2025-E127 DAILY ORBIT UPDATE (2025 March 7)	2025-03-07 12:06:00
135	MPEC 2025-E136 DAILY ORBIT UPDATE (2025 March 8)	2025-03-08 12:11:00
136	MPEC 2025-E162 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-03-12 20:26:00			Comet	CATCH
137	MPEC 2025-F03 DAILY ORBIT UPDATE (2025 March 16)	2025-03-16 12:02:00
138	MPEC 2025-F07 DAILY ORBIT UPDATE (2025 March 18)	2025-03-18 12:04:00
139	MPEC 2025-F113 2025 DL50	2025-03-24 15:59:00	✓		Unusual	CATCH
140	MPEC 2025-F123 2025 FU5	2025-03-24 18:29:00	✓		NEA (H>22)	CATCH
141	MPEC 2025-F146 DAILY ORBIT UPDATE (2025 March 25)	2025-03-25 12:15:00
142	MPEC 2025-F259 DAILY ORBIT UPDATE (2025 March 31)	2025-03-31 12:31:00
143	MPEC 2025-G117 DAILY ORBIT UPDATE (2025 April 11)	2025-04-11 12:02:00
144	MPEC 2025-G119 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-04-11 19:21:00			Comet	CATCH
145	MPEC 2025-H10 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-04-17 17:41:00			Comet	CATCH
146	MPEC 2025-H115 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-04-24 15:59:00			Comet	CATCH
147	MPEC 2025-H199 2025 HA7	2025-04-29 13:59:00	✓		NEA (H>22)	CATCH
148	MPEC 2025-J02 2025 DY62	2025-05-01 00:52:00			Unusual	CATCH
149	MPEC 2025-J41 2025 HS34	2025-05-05 08:16:00	✓		Unusual	CATCH
150	MPEC 2025-J72 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-05-08 16:12:00			Comet	CATCH
151	MPEC 2025-J92 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-05-15 18:19:00			Comet	CATCH
152	MPEC 2025-M120 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-06-26 16:33:00			Comet	CATCH
153	MPEC 2025-N64 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-07-07 20:51:00			Comet	CATCH
154	MPEC 2025-N88 DAILY ORBIT UPDATE (2025 July 11)	2025-07-11 12:15:00
155	MPEC 2025-O159 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-07-31 18:52:00			Comet	CATCH
156	MPEC 2025-P116 DAILY ORBIT UPDATE (2025 August 8)	2025-08-08 12:12:00
157	MPEC 2025-Q29 DAILY ORBIT UPDATE (2025 August 18)	2025-08-18 12:08:00
158	MPEC 2025-Q90 2019 NH6	2025-08-22 11:05:00			NEA (H>22)	CATCH
159	MPEC 2025-Q96 2025 QY2	2025-08-22 15:12:00	✓		Unusual	CATCH
160	MPEC 2025-Q165 2025 QL6	2025-08-26 16:09:00	✓		NEA (H>22)	CATCH
161	MPEC 2025-Q175 2025 QL7	2025-08-27 06:18:00	✓		NEA (H>22)	CATCH
162	MPEC 2025-Q214 2025 QB10	2025-08-29 10:47:00	✓		NEA (H>22)	CATCH
163	MPEC 2025-Q275 2007 DY	2025-08-31 06:55:00			PHAg18	CATCH
164	MPEC 2025-R13 DAILY ORBIT UPDATE (2025 September 2)	2025-09-02 12:47:00
165	MPEC 2025-R63 Comet 3I/ATLAS	2025-09-08 19:24:00			Comet	CATCH
166	MPEC 2025-R69 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-09-09 19:18:00			Comet	CATCH
167	MPEC 2025-R100 DAILY ORBIT UPDATE (2025 September 15)	2025-09-15 12:06:00
168	MPEC 2025-S35 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-09-16 19:04:00			Comet	CATCH
169	MPEC 2025-S159 2025 SE3	2025-09-21 13:48:00	✓		NEA (H>22)	CATCH
170	MPEC 2025-S171 DAILY ORBIT UPDATE (2025 September 22)	2025-09-22 12:21:00
171	MPEC 2025-S186 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-09-23 21:10:00			Comet	CATCH
172	MPEC 2025-S249 DAILY ORBIT UPDATE (2025 September 26)	2025-09-26 12:18:00
173	MPEC 2025-S264 DAILY ORBIT UPDATE (2025 September 28)	2025-09-28 12:21:00
174	MPEC 2025-S298 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS	2025-09-30 17:23:00			Comet	CATCH

List of Observers

Observer Group	Total MPECs
J.A.Jiang, J.Q.Lu, L.L.Fan, X.Kong, Z.Lou	396
Q.Y.Hai, S.X.Li, Z.Q.Li	33
J.Q.Lu, L.L.Fan, X.Kong, Z.Lou	30
Q.Y.Hai, S.X.Li, Z.Lou, Z.Q.Li	27
B.Li, H.B.Zhao, J.A.Jang, J.A.Jiang, J.Q.Lu, K.Yan, L.L.Fan, Q.Y.Hai, S.X.Li, X.Kong, Z.Lou, Z.Q.Li	26
R.D.Liang, S.X.Li, X.C.Li, X.Z.Li, Z.Q.Li, Z.Y.Liu	24
J.Z.Zhu, K.Yan, N.Jiang, S.X.Li, Z.Q.Li, Z.Y.Liu	24
K.Yan, Q.Y.Hai, S.X.Li, Z.Lou, Z.Q.Li	24
B.Li, H.B.Zhao, J.A.Jang, K.Yan, Q.Y.Hai, S.X.Li, Z.Lou, Z.Q.Li	21
J.Z.Zhu, K.Yan, N.Jiang, Q.Y.Hai, S.X.Li, Z.Q.Li, Z.Y.Cai, Z.Y.Liu	15
J.Z.Zhu, K.Yan, N.Jiang, Q.Y.Hai, Z.Q.Li, Z.Y.Cai, Z.Y.Liu	12
Q.Y.Hai, R.D.Liang, S.X.Li, X.C.Li, X.Z.Li, Z.Q.Li	9
R.D.Liang, S.X.Li, X.Z.Li, Z.Q.Li	6
R.D.Liang, S.X.Li, X.Z.Li, Z.Q.Li, Z.Y.Liu	6
B.Li, H.B.Zhao, K.Yan, Q.Y.Hai, S.X.Li, Z.Lou, Z.Q.Li	6
D.Z.Meng, J.A.Jang, J.H.Zhao, K.Yan, Q.Y.Hai, S.X.Li, Z.Lou, Z.Q.Li	6
J.A.Jiang, S.F.Zhu, S.X.Li, X.C.Li, Z.B.Su	3
S.X.Li, Z.Q.Li, Z.Y.Liu	3
J.Z.Zhu, K.Yan, N.Jiang, Q.Y.Hai, Z.Y.Cai	3
J.Z.Zhu, K.Yan, N.Jiang, Z.Q.Li, Z.Y.Liu	3
K.Yan, Q.Y.Hai, X.C.Tan, X.L.Zhang, Z.Q.Li	3

Individual Observer	Total MPECs
Z.Lou	536
J.Q.Lu	452
L.L.Fan	452
X.Kong	452
J.A.Jiang	425
Z.Q.Li	248
S.X.Li	233
Q.Y.Hai	185
K.Yan	143
Z.Y.Liu	87
J.Z.Zhu	57
N.Jiang	57
B.Li	53
H.B.Zhao	53
J.A.Jang	53
R.D.Liang	45
X.Z.Li	45
X.C.Li	36
Z.Y.Cai	30
D.Z.Meng	6
J.H.Zhao	6
S.F.Zhu	3
Z.B.Su	3
X.C.Tan	3
X.L.Zhang	3

List of Measurers

Measurer Group	Total MPECs
B.X.Fu, J.Q.Lu, M.X.Cai, S.H.Wang, Z.L.Xu	237
B.Li, G.T.Zhaori, H.B.Zhao, Z.J.Xu	207
B.X.Fu, J.Q.Lu, M.X.Cai, S.H.Wang, T.Y.Fu, Z.L.Xu	189
B.Li, B.X.Fu, G.T.Zhaori, H.B.Zhao, J.Q.Lu, M.X.Cai, S.H.Wang, T.Y.Fu, Y.J.Liu, Z.J.Xu, Z.L.Xu	26
B.Li, G.T.Zhaori, H.B.Zhao, Y.J.Liu, Z.J.Xu	21

Individual Measurer	Total MPECs
B.X.Fu	452
J.Q.Lu	452
M.X.Cai	452
S.H.Wang	452
Z.L.Xu	452
B.Li	254
G.T.Zhaori	254
H.B.Zhao	254
Z.J.Xu	254
T.Y.Fu	215
Y.J.Liu	47

List of Facilities

Facilities	Count
2.5-m f/2.48 reflector + CCD	257